A bomb blast targeting Saudi police has killed an expatriate in Riyadh, the interior ministry said Sunday. The bombing targeted a security patrol vehicle parked near a police station in Al-Kharj, near Riyadh, late on Saturday, the ministry said, quoted by the official Saudi Press Agency. The ministry said at least three police cars were damaged in the explosion at a parking lot on Saturday night that killed an expatriate man, but gave no further details on who was behind the attack. An Islamic State affiliate, calling itself the Nejd Province branch of the organization, claimed responsibility for the blast, which took place in al-Dilam, a small city located about 100 km (62 miles) south of Riyadh.